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Title:
METHOD AND DEVICE FOR TUFTING GLASS MAT, BOARD WITH NEEDLE FOR CARRYING OUT THE METHOD AND RESIN SHEET PRODUCED BY THE METHOD AND DEVICE
Document Type and Number:
Japanese Patent JPS6426770
Kind Code:
A
Abstract:

PURPOSE: To improve the impregnation of a thermoplastic resin and the adhesion of the resin to a mat by tufting a continuous glass filament mat with two kinds of needles having different diameters.

CONSTITUTION: This method for producing a mat used as a reinforcement in composite materials comprises tufting the aggregate of continuous glass filaments. Therein, two kinds of needles having different diameters are used. One kind of the needles have a diameter of 0.50-2.35 mm, and the other kind of the needles have a diameter of 1.10-3.56 mm. Two kinds of the needle may simultaneously be operated, or after the needles having the small diameter may be used to tuft the glass mat, the needles having the large diameter may be used.


Inventors:
Bolliand, Robert
Application Number:
JP1988000153358
Publication Date:
January 30, 1989
Filing Date:
June 21, 1988
Export Citation:
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Assignee:
INST TEXTILE DE FRANCE
VETROTEX SAINT GOBAIN SOC
International Classes:
C08J5/08; B29C70/38; B32B5/06; D04H3/004; D04H3/10; D04H3/105; D04H11/08; D04H18/00; (IPC1-7): B32B5/06; C08J5/08; D04H11/08; D04H18/00



 
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